Information Flow Security (Tsf_Inf_Flow) - Fuji Xerox C2265 Manual

c) S/MIME
According to the S/MIME communication which is configured by a system administrator
using the system administrator mode, S/MIME ensuring secure mail communication is
supported. This protects the security of document data on the internal and external
networks.
By S/MIME encrypting mail function, the document data being transmitted to/from the
outside by E-mail are protected from interception. By S/MIME signature mail function, the
document data are protected from interception and alteration.
A cryptographic key is generated at the time of starting mail encryption and lost at the time
of completion of the encryption or powering off the MFD main unit.
Secret-key cryptographic method generated as S/MIME protocol for mail encryption
Cryptographic Method and Size
of Secret Key
3Key Triple-DES/168 bits
AES / 128 bits
AES / 192 bits
AES / 256 bits
Hash method generated as S/MIME protocol for digital signature
hash method
SHA1
SHA256
7.1.8.

Information Flow Security (TSF_INF_FLOW)

Information Flow Security function restricts the unpermitted communication between external
interfaces and shared-medium interfaces (internal network).
(1) FPT_FDI_EXP.1 Restricted forwarding of data to external interfaces
TOE provides the following capabilities to restrict the transfer of the received data from
external interfaces to the internal network without processing.
External Interface
USB (Device)
Fax board / USB (Host)
Fuji Xerox C2265/C2263
Restriction on Communication with SMI (Internal Network)
Interface for receiving print data. Not permitted to transfer
the data to other interfaces.
(Note: The print job is stored in Private Print)
Unable to access TOE via Fax board that is connected with
a controller board by an exclusive USB interface, and the
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Security Target
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Copyright 2016 by Fuji Xerox Co., Ltd